Managing Flex, extra.symfony.require & Version Constraints > Upgrading & What's New in Symfony 5! | SymfonyCasts
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Composer Issue while Migrating to 4.3 to 5.0 - Using Neos & Flow - Discuss Neos – the official forum of the Neos project
![Release nodes for major version initial releases contain inaccurate upgrading instructions [#3328588] | Drupal.org Release nodes for major version initial releases contain inaccurate upgrading instructions [#3328588] | Drupal.org](https://www.drupal.org/files/issues/2022-12-21/d10-update-fail.jpg)
Release nodes for major version initial releases contain inaccurate upgrading instructions [#3328588] | Drupal.org
![Composer update fails with "drush/drush 9.6.0 requires symfony/yaml ^3.4 -> satisfiable by symfony/yaml[3.4.x-dev]" - Stack Overflow Composer update fails with "drush/drush 9.6.0 requires symfony/yaml ^3.4 -> satisfiable by symfony/yaml[3.4.x-dev]" - Stack Overflow](https://i.stack.imgur.com/PZ7xN.png)
Composer update fails with "drush/drush 9.6.0 requires symfony/yaml ^3.4 -> satisfiable by symfony/yaml[3.4.x-dev]" - Stack Overflow
Composer 1.10.22: --no-dev wants to include require-dev · composer composer · Discussion #9859 · GitHub
composer update demands require-dev system extensions when running with --no-dev flag · Issue #6575 · composer/composer · GitHub
composer `update` w/ `--no-dev` checks dev packages platform requirements · Issue #9869 · composer/composer · GitHub
![PHP 7.3 breaks composer with continue/targeting error (solution: downgrade to 7.2) · Issue #7783 · composer/composer · GitHub PHP 7.3 breaks composer with continue/targeting error (solution: downgrade to 7.2) · Issue #7783 · composer/composer · GitHub](https://user-images.githubusercontent.com/5334222/56294322-a7c21a00-60df-11e9-82e8-02118b526011.png)